Implantation of a toric poly(methyl methacrylate) intraocular lens to correct high astigmatism
| Autor: | H. Burkhard Dick, Hans-Jürgen Thiel, Andreas Frohn |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Male
medicine.medical_specialty Refractive error genetic structures medicine.medical_treatment Visual Acuity Intraocular lens Astigmatism Refraction Ocular Cataract Cornea High astigmatism Lens Implantation Intraocular Ophthalmology Humans Polymethyl Methacrylate Medicine Dioptre Lenses Intraocular Phacoemulsification business.industry Corneal Topography Middle Aged Cataract surgery equipment and supplies medicine.disease eye diseases Sensory Systems Surgery Toric lens sense organs business |
| Zdroj: | Journal of Cataract and Refractive Surgery. 25:1675-1678 |
| ISSN: | 0886-3350 |
| DOI: | 10.1016/s0886-3350(99)00272-2 |
| Popis: | A 57-year-old man experienced a decrease in visual function because of cataract formation. Corneal astigmatism was 13.4 diopters (D) because he had had a penetrating keratoplasty 27 years before. Cataract surgery was planned, and biometric data for toric intraocular lens (IOL) implantation were collected for the manufacture of a custom IOL. After phacoemulsification, a toric poly(methyl methacrylate) (PMMA) IOL of +19.0 D spherical and +12.0 D cylindrical power was implanted via a sclerocorneal tunnel incision. Three months postoperatively, corneal astigmatism was 14.3 D and best corrected visual acuity (BCVA), 20/25. Postoperative refraction (+1.5 −3.0 × 90) and BCVA remained stable for 7 months. No significant IOL rotation was observed. Implantation of a toric PMMA IOL corrected high corneal astigmatism. Toric IOL technology with high cylindrical power allows enhancement of IOL surgery. |
| Databáze: | OpenAIRE |
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